大约有 30,000 项符合查询结果（耗时：0.0456秒） [XML]
MySQL ON DUPLICATE KEY - last insert id?
...e.html
At the bottom of the page they explain how you can make LAST_INSERT_ID meaningful for updates by passing an expression to that MySQL function.
From the MySQL documentation example:
If a table contains an AUTO_INCREMENT column and INSERT ... UPDATE inserts a row, the LAST_INSERT_ID() func...
Django Admin - change header 'Django administration' text
...admin base_site.html template to do this. The easiest way is to create the file:
/<projectdir>/templates/admin/base_site.html
This should be a copy of the original base_site.html, except putting in your custom title:
{% block branding %}
<h1 id="site-name">{% trans 'my cool admin con...
How do I print debug messages in the Google Chrome JavaScript Console?
... stack trace to the point of the new Error() invocation (including path to file and line number!).
Both %o and new Error().stack are available in Chrome and Firefox!
Also for stack traces in Firefox use:
console.trace();
As https://developer.mozilla.org/en-US/docs/Web/API/console says.
Happy h...
How to get cumulative sum
...
select t1.id, t1.SomeNumt, SUM(t2.SomeNumt) as sum
from @t t1
inner join @t t2 on t1.id >= t2.id
group by t1.id, t1.SomeNumt
order by t1.id
SQL Fiddle example
Output
| ID | SOMENUMT | SUM |
-----------------------
| 1 | 1...
How to stop mongo DB in one command
...important if running MongoDB in a Docker - docs.docker.com/compose/compose-file/#stop_grace_period . Additional note that CMD ["mongod", "option", "option" ] needs to be used to make sure that MongoDB gets PID 1, then signal sent by Docker will reach your DB.
– laimison
...
Referencing a string in a string array resource with xml
...ut? If the title changes with user choice, why not just do it in the .java file. E.g. .setText(some_array[i]).
– user485498
Nov 12 '10 at 3:39
2
...
Parsing domain from a URL
...-central/source/netwerk/dns/effective_tld_names.dat?raw=1';
$content = file($address);
foreach ($content as $num => $line) {
$line = trim($line);
if($line == '') continue;
if(@substr($line[0], 0, 2) == '/') continue;
$line = @preg_replace("/[^a-zA-Z0-9\.]/"...
Efficiently convert rows to columns in sql server
... from yourtable
group by ColumnName, id
order by id
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
set @query = N'SELECT ' + @cols + N' from
(
select value, Column...
How do I find a “gap” in running counter with SQL?
...
In MySQL and PostgreSQL:
SELECT id + 1
FROM mytable mo
WHERE NOT EXISTS
(
SELECT NULL
FROM mytable mi
WHERE mi.id = mo.id + 1
)
ORDER BY
id
LIMIT 1
In SQL Server:
SELECT TOP 1
id + 1
FR...
Resizing UITableView to fit content
...int from the storyboard and create @IBOutlet for it in the view controller file.
@IBOutlet var tableHeight: NSLayoutConstraint!
Then you can change the height for the table dynamicaly using this code:
override func viewWillLayoutSubviews() {
super.updateViewConstraints()
self.tableHeight?....